Assertion : Organ of Corti rests on tectorial membrane. Reason : It helps to maintain equilibrium of body.

Step-by-step solution

The organ of Corti lies on the basilar membrane. It contains a series of electromechanically sensitive cells i.e. hair cells. They are the receptive end organs that generate nerve impulses in response to sound vibrations. Thus, organ of Corti is actually the organ that perceives sound. Minute hairs project upward from hair cell and they are embedded in the tectorial membrane. Equilibrium of body is maintained with the help of semicircular canals, utricle and saccule of internal ear.